What's inside the grumpy door in Divinity Original Sin 2

There is a lich inside the grumpy door in Divinity Original Sin 2. Divinity Original Sin 2 generally refers to "Divinity: Original Sin 2". In the game, go to the cave to the north of the Ice Dragon (X596Y195) and convince the grumpy door that there is a lich inside the door who was captured by Haggar to absorb energy. You You can kill this lich, which is the easiest, but you will lose a lot of subsequent tasks and rewards. "Divinity: Original Sin 2" is a team-based role-playing game developed by Larian Studios.